Effect of annealing on the optical properties of Nd:YAG transparent ceramics

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	Effect of annealing on the optical properties of Nd:YAG transparent ceramics
	W. Zhang; T. C. Lu; N. A. Wei; B. Y. Ma; F. Li; Z. W. Lu; J. Q. Qi
	2012
发表期刊	Optical Materials
ISSN	0925-3467
卷号	34 期号:4 页码:685-690
摘要	The Nd:YAG transparent ceramics were fabricated by vacuum sintering at 1750 degrees C for 20 h, where the raw nanopowders were synthesized by a modified co-precipitation method. Subsequently the Nd:YAG ceramic specimens were annealed or even re-annealed in air or vacuum at 1250-1500 degrees C for 20 h. The Nd:YAG ceramic specimens were investigated by X-ray diffraction, ultraviolet spectroscopy, inductively coupled plasma atomic emission spectroscopy, electron paramagnetic resonance spectroscopy and scanning electron microscopy. The results showed that post-annealing could improve the optical properties and microstructure of Nd:YAG transparent ceramics. By air annealing, the in-line transmittances of the specimens increased, mainly due to the decrease of oxygen vacancies concentration in specimens. The air annealing at 1450 degrees C for 20 h was optimum for preparation of Nd:YAG transparent ceramics. Furthermore, the red shift of UV absorption edge after air annealing could be attributed to the absorption by Fe3+ charge transfer bands. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[zhang, wei; lu, tiecheng; wei, nian; ma, benyuan; li, feng; lu, zhongwen; qi, jianqi] sichuan univ, dept phys, chengdu 610064, peoples r china. [zhang, wei; lu, tiecheng; wei, nian; ma, benyuan; li, feng; lu, zhongwen; qi, jianqi] sichuan univ, minist educ, key lab radiat phys & technol, chengdu 610064, peoples r china. [lu, tiecheng] chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;lu, tc (reprint author), sichuan univ, dept phys, chengdu 610064, peoples r china.;lutiecheng@scu.edu.cn
关键词	Nd:Yag Ceramics Annealing Optical Properties Oxygen Vacancies Iron Impurities Yttrium-aluminum-garnet Electron-paramagnetic-resonance Nd-yag Ceramics Laser Ceramics Fe Impurities Crystals Polycrystalline Fabrication
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60458
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Zhang,T. C. Lu,N. A. Wei,et al. Effect of annealing on the optical properties of Nd:YAG transparent ceramics[J]. Optical Materials,2012,34(4):685-690.
APA	W. Zhang.,T. C. Lu.,N. A. Wei.,B. Y. Ma.,F. Li.,...&J. Q. Qi.(2012).Effect of annealing on the optical properties of Nd:YAG transparent ceramics.Optical Materials,34(4),685-690.
MLA	W. Zhang,et al."Effect of annealing on the optical properties of Nd:YAG transparent ceramics".Optical Materials 34.4(2012):685-690.